WO2023140496A1 - Module de batterie et bloc-batterie le comprenant - Google Patents

Module de batterie et bloc-batterie le comprenant Download PDF

Info

Publication number
WO2023140496A1
WO2023140496A1 PCT/KR2022/019764 KR2022019764W WO2023140496A1 WO 2023140496 A1 WO2023140496 A1 WO 2023140496A1 KR 2022019764 W KR2022019764 W KR 2022019764W WO 2023140496 A1 WO2023140496 A1 WO 2023140496A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling pipe
battery
battery cell
module
paragraph
Prior art date
Application number
PCT/KR2022/019764
Other languages
English (en)
Korean (ko)
Inventor
김민섭
성준엽
전종필
Original Assignee
주식회사 엘지에너지솔루션
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 엘지에너지솔루션 filed Critical 주식회사 엘지에너지솔루션
Priority to EP22922353.2A priority Critical patent/EP4366038A1/fr
Priority to CN202280058464.0A priority patent/CN117882232A/zh
Publication of WO2023140496A1 publication Critical patent/WO2023140496A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery module and a battery pack including the same, and more particularly, to a battery module and battery pack having a novel cooling structure.
  • secondary batteries are attracting much attention as energy sources for power devices such as electric bicycles, electric vehicles, and hybrid electric vehicles as well as mobile devices such as mobile phones, digital cameras, laptops, and wearable devices.
  • prismatic batteries and pouch-type batteries that can be stacked with a high degree of integration and have a small weight compared to capacity are mainly used as battery cells of medium-large-sized battery modules.
  • Such a battery module has a structure in which a plurality of cell assemblies including a plurality of unit battery cells are connected in series to obtain high output.
  • the battery cell can be repeatedly charged and discharged by an electrochemical reaction between components including positive and negative current collectors, separators, active materials, electrolytes, and the like.
  • a battery pack when a battery pack is configured by connecting a plurality of battery cells in series/parallel, a battery module composed of at least one battery cell is first configured, and other components are added using the at least one battery module.
  • a method of configuring a battery pack is common.
  • a plurality of secondary batteries that is, a battery module or a battery pack having battery cells may increase the temperature more quickly and severely due to the sum of heat emitted from the plurality of battery cells in a narrow space.
  • a battery module in which a plurality of battery cells are stacked and a battery pack equipped with such a battery module, high output can be obtained, but it is not easy to remove heat generated from the battery cells during charging and discharging. If the heat dissipation of the battery cell is not performed properly, the battery cell deteriorates rapidly, shortens its lifespan, and increases the possibility of explosion or ignition.
  • battery modules included in vehicle battery packs are frequently exposed to direct sunlight and may be placed in high temperature conditions such as summer or desert areas.
  • FIG. 1 is a perspective view of a conventional battery module.
  • FIG. 2 is a view showing a cross section cut along the cutting line A-A′ in FIG. 1 .
  • FIG. 3 is an enlarged view of part B of FIG. 2 .
  • the conventional battery module 10 includes a battery cell stack 12 in which a plurality of battery cells 11 are stacked in one direction, a module frame 25 accommodating the battery cell stack 12, and end plates 15 covering the front and rear surfaces of the battery cell stack 12.
  • the module frame 25 includes a lower frame 30 covering the bottom and both sides of the battery cell stack 12 and an upper plate 40 covering the upper surface of the battery cell stack 12 .
  • a thermally conductive resin layer 31 positioned between the bottom of the battery cell stack 12 and the bottom of the module frame 25 may be formed.
  • the battery cell 11 of the conventional battery module 10 is configured by folding or maintaining the sealing portion 11a.
  • the sealing portion 11a when the sealing portion 11a is disposed as shown in FIG. 3 , it is difficult to utilize the space between the upper plate 40 and the battery cell stack 12 due to the sealing portion 11a. Therefore, due to the arrangement of the sealing portion 11a, it is difficult to achieve an effective cooling effect through the upper portion of the battery module 10, and the sealing portion 11a, such as a space between the sealing portion 11a and the body of the battery cell 10. There was a problem in that the cooling performance was deteriorated by the air layer formed adjacent to 11a.
  • An object to be solved by the present invention is to provide a battery module that improves cooling performance by lowering the temperature of a battery cell and a battery pack including the same.
  • a battery module includes a battery cell stack including a plurality of battery cells; a module frame accommodating the battery cell stack; and a cooling pipe member formed between an upper portion of the battery cell stack and the module frame, wherein the cooling pipe member includes a first cooling pipe portion and a second cooling pipe portion.
  • the battery cell may include a sealing portion formed along a longitudinal direction of the battery cell, and the cooling pipe member may be formed to be adjacent to the sealing portion.
  • the sealing part may be positioned between the first cooling pipe part and the second cooling pipe part.
  • the sealing part may be bent at least once in one direction.
  • the sealing part may be bent a plurality of times in one direction, and the sealing part bent a plurality of times may be arranged parallel to the side surface of the module frame.
  • the sealing part may include a first part, a second part, and a third part connected to each other, and the first part, the second part, and the third part may be arranged parallel to each other.
  • the sealing part may further include a first connection part and a second connection part, and a length of the first part may be longer than a length of the first connection part.
  • the first cooling pipe part and the second cooling pipe part may be connected to each other, and a cooling passage may be formed along the first cooling pipe part and the second cooling pipe part.
  • the first cooling pipe part and the second cooling pipe part may be formed parallel to the longitudinal direction of the battery cell.
  • the first cooling pipe part and the second cooling pipe part may form one cooling pipe unit, and the cooling pipe member may include a plurality of the cooling pipe units.
  • the cooling pipe member may further include a refrigerant inlet and a refrigerant outlet, the first cooling pipe may be connected to the refrigerant inlet, and the second cooling pipe may be connected to the refrigerant outlet.
  • the battery cell stack may further include end plates covering front and rear surfaces, and the refrigerant inlet and the refrigerant outlet may be formed adjacent to the end plate.
  • a thermally conductive resin layer formed between an upper portion of the battery cell stack and the module frame may be further included, and the cooling pipe member may contact the thermally conductive resin layer.
  • the battery module according to another embodiment of the present invention may further include a cooling pipe member formed between the lower portion of the battery cell stack and the module frame.
  • a battery pack according to another embodiment of the present invention includes the battery module.
  • the battery module according to an embodiment of the present invention includes a cooling pipe member formed between the battery cell stack and the module frame, thereby effectively cooling battery cells whose temperature rises in a high current and rapid charging environment.
  • stability of the battery module may be improved by minimizing the internal temperature deviation of the battery module.
  • FIG. 1 is a perspective view of a conventional battery module.
  • FIG. 2 is a view showing a cross section cut along the cutting line A-A′ in FIG. 1 .
  • FIG. 3 is an enlarged view of part B of FIG. 2 .
  • FIG. 4 is a perspective view of a battery module according to an embodiment of the present invention.
  • FIG. 5 is a perspective view illustrating only some components of the battery module of FIG. 4 except for an upper plate.
  • FIG. 6 is an exploded perspective view of the battery module of FIG. 4;
  • FIG. 7 is a perspective view of a cooling pipe member included in the battery module of FIG. 4 .
  • FIG. 8 is an enlarged view of a portion of a cooling pipe member included in the battery module of FIG. 4 .
  • FIG. 9 is a view showing a cross section cut along the cutting line A-A′ of FIG. 4 .
  • FIG. 10 is an enlarged view of part B of FIG. 9 .
  • FIG. 11 is a perspective view of a battery module according to another embodiment of the present invention viewed from the rear.
  • FIG. 12 is a view showing a cross section cut along the cutting line C-C′ of FIG. 11 .
  • FIG. 13 is a perspective view showing a battery cell included in the battery module of the present invention.
  • FIG. 14 to 16 are views showing a sealing unit according to another embodiment of the present invention.
  • a part such as a layer, film, region, plate, etc. is said to be “on” or “on” another part, this includes not only the case where it is “directly on” the other part, but also the case where there is another part in the middle. Conversely, when a part is said to be “directly on” another part, it means that there is no other part in between.
  • being “above” or “on” a reference part means being located above or below the reference part, and does not necessarily mean being located “above” or "on” in the opposite direction of gravity.
  • planar image it means when the target part is viewed from above, and when it is referred to as “cross-sectional image”, it means when a cross section of the target part cut vertically is viewed from the side.
  • FIG. 4 is a perspective view of a battery module according to an embodiment of the present invention.
  • 5 is a perspective view showing only some components of the battery module of FIG. 4 .
  • 9 is a view showing a cross section cut along the cutting line A-A′ of FIG. 4 .
  • FIG. 10 is an enlarged view of part B of FIG. 9 .
  • the battery module 100 includes a battery cell stack 120 in which a plurality of battery cells 110 are stacked and a module frame 200 accommodating the battery cell stack 120.
  • the battery cell 110 is preferably a pouch-type battery cell, and may be formed in a rectangular sheet-like structure.
  • the battery cell 110 according to this embodiment has two electrode leads 111 and 112 facing each other and protruding from one end 114a and the other end 114b of the cell body 113, respectively. That is, the battery cell 110 includes electrode leads 111 and 112 protruding in opposite directions. More specifically, the electrode leads 111 and 112 are connected to an electrode assembly (not shown) and protrude from the electrode assembly (not shown) to the outside of the battery cell 110 .
  • the battery cell 110 while the electrode assembly (not shown) is accommodated in the cell case 114, both ends 114a and 114b of the cell case 114 and one side portion 114c connecting them. It can be manufactured by bonding.
  • the battery cell 110 according to the present embodiment has a total of three sealing portions 114sa, 114sb, and 114sc, and the sealing portions 114sa, 114sb, and 114sc are sealed by a method such as thermal fusion.
  • the other side may be formed of the connection portion 115.
  • the sealing parts 114sa, 114sb, and 114sc may include a sealing part 114sc formed in the longitudinal direction of the battery cell and a sealing part 114sa, 114sb formed in the width direction of the battery cell.
  • the sealing portion 114sc formed in the longitudinal direction of the battery cell is not limited to the shape shown in FIGS. 9 and 10, and may include a single folding bent once (once), a non-folding without a bent portion, and various types of sealing portion 114sc structures.
  • the cell case 114 may be made of a laminated sheet including a resin layer and a metal layer.
  • both ends 114a and 114b of the battery case 114 is defined in the longitudinal direction of the battery cell 110, and between one side portion 114c connecting both ends 114a and 114b of the battery case 114 and the connection portion 115 may be defined in the width direction of the battery cell 110.
  • the connecting portion 115 may extend along one edge of the battery cell 110 , and a bat ear 110p may be formed at an end of the connecting portion 115 .
  • the terrace portion 116 may be formed between the electrode leads 111 and 112 and the cell body 113. That is, the battery cell 110 may include a terrace portion 116 extending from the cell case 114 in a direction in which the electrode leads 111 and 112 protrude.
  • the battery cells 110 may be configured in plurality, and the plurality of battery cells 110 are stacked so as to be electrically connected to each other to form the battery cell stack 120 .
  • a plurality of battery cells 110 may be stacked along a direction parallel to the y-axis. Accordingly, the electrode leads 111 and 112 may protrude in the x-axis direction and the -x-axis direction, respectively.
  • the conventional battery module has a problem in that the cooling efficiency is reduced due to the space occupied by the sealing part of the battery cell, and it is difficult to utilize the space in applying the thermally conductive resin layer thereon.
  • the battery cell 110 includes a sealing portion 114sc formed along the longitudinal direction of the battery cell 110, and the sealing portion 114sc is bent at least once or multiple times in one direction, and the sealing portion 114sc bent multiple times may be arranged in parallel with the side surface of the module frame 200.
  • the sealing portion 114sc may be arranged parallel to the width direction of the battery cell 110 .
  • the sealing portion 114sc may be formed in the overall height direction of the battery module 100 .
  • the width direction of the battery cell 100 may mean a direction between the sealing portion 114sc and the connection portion 115 or between the sealing portion 114sc and the bottom portion 300a of the frame member 300.
  • the sealing portion 114sc bent multiple times may include a first portion 114sc1 , a second portion 114sc2 , and a third portion 114sc3 connected to each other.
  • the first part 114sc1 , the second part 114sc2 , and the third part 114sc3 may be arranged parallel to each other.
  • Directions in which the first part 114sc1, the second part 114sc2, and the third part 114sc3 are arranged in parallel with each other may be arranged in parallel with the side surface of the module frame 200, and the battery cell 110. It may be arranged in parallel with the width direction.
  • the sealing portion 114sc may be formed into a scroll shape having at least one bent portion by being bent at least once, or having a plurality of bent portions by being bent a plurality of times. That is, it may have a single folding structure that is bent at least once or a double folding structure that is bent multiple times.
  • the scroll shape may mean that the sealing portion 114sc is bent multiple times in one direction, so that the cross section of the sealing portion 114sc has a curved or spiral shape having a bent portion.
  • the outermost edge portion of the sealing portion 114sc may be located at the center of the scroll shape.
  • the outermost edge portion may mean an outermost edge area before the sealing portion 114sc is bent.
  • the outermost edge portion may be bent a plurality of times to be located in the center of the scroll shape.
  • the outermost edge portion may correspond to the third portion 114sc3 of the sealing portion 114sc that is bent a plurality of times.
  • the space occupied by the sealing portion 114sc can be minimized compared to the conventional sealing portion.
  • heat transfer resistance may be minimized.
  • the sealing part 114sc may include a first connection part 114sc4 connecting the first part 114sc1 and the second part and a second connection part 114sc5 connecting the second part 114sc2 and the third part 114sc3.
  • the vertical length of the sealing part 114sc is the sealing part 114 sc
  • the sealing part 114 sc may be formed longer than the horizontal length. Accordingly, the area occupied by the sealing part 114sc in the upper part of the battery cell stack 120 is minimized, and cooling performance can be improved, and the sealing part 114sc can be fixedly formed by a cooling pipe configuration to be described later.
  • the module frame 200 includes a U-shaped frame 300 covering the bottom and both sides of the battery cell stack 120 with open top, front and rear surfaces, and an upper plate 400 covering the top of the battery cell stack 120.
  • the U-shaped frame 300 may include a bottom portion 300a supporting the lower portion of the battery cell stack 120 and side portions 300b extending upward from both ends of the bottom portion 300a.
  • the module frame 200 is not limited thereto, and may be replaced with a frame having another shape such as an L-shaped frame or a mono frame surrounding the battery cell stack 120 except for the front and rear surfaces.
  • the battery cell stack 120 accommodated inside the module frame 200 may be physically protected through the module frame 200 .
  • the upper plate 400 may cover the open upper side of the module frame 200 .
  • the end plate 150 may cover the front and rear surfaces of the battery cell stack 120 that is open from the module frame 200 .
  • the end plate 150 may be coupled to front and rear edges of the upper plate 400 and front and rear edges of the module frame 200 through welding.
  • the end plate may include a front end plate 151 and a rear end plate 152 .
  • a bus bar frame 130 may be formed between the end plate 150 and the front and rear surfaces of the battery cell stack 120 .
  • the bus bar frame 130 may cover a portion of the battery cell stack 120 exposed from the module frame 200 .
  • the plurality of bus bars 160 mounted on the bus bar frame 130 may protrude from the battery cells 110 and be connected to the electrode leads 111 and 112 mounted on the bus bar frame 130.
  • a slot through which the electrode leads 111 and 112 pass may be formed in the bus bar 160 .
  • the electrode leads 111 and 112 passing through the slot of the bus bar 160 may contact the bus bar 160 .
  • the battery module 100 further includes a first thermally conductive resin layer 310 positioned between the lower surface of the battery cell stack 120 and the bottom portion of the module frame 200, that is, the bottom portion 300a of the U-shaped frame 300. It may serve to fix (120).
  • the battery module 100 may further include a second thermally conductive resin layer 320 formed between the upper portion of the battery cell stack 120 and the upper portion of the module frame 200, that is, the upper plate 400. Accordingly, heat generated in the battery cell 110 may be transferred through the upper portion of the module frame 200 through the second thermally conductive resin layer 320 .
  • the battery module 100 includes a heat transfer path to the top of the module frame 200 through the second thermally conductive resin layer 320 instead of a one-way path through the bottom of the module frame 200. Cooling performance can be improved.
  • the first thermally conductive resin layer 310 and the second thermally conductive resin layer 320 may be formed by coating and curing a thermal resin. Therefore, although the first thermally conductive resin layer 310 and the second thermally conductive resin layer 320 are shown as plate-shaped, they can be freely deformed according to the shape of other components during the process of curing after the thermally conductive resin is applied.
  • FIG. 7 is a perspective view of a cooling pipe member included in the battery module of FIG. 4 .
  • FIG. 8 is an enlarged view of a portion of a cooling pipe member included in the battery module of FIG. 4 .
  • the cooling pipe member 500 of the battery module 100 is formed between the top of the battery cell stack 120 and the module frame 200 .
  • the cooling pipe member 500 may be formed between the battery cell stack 120 and the upper plate 400 .
  • a cooling pipe member 500 includes a first cooling pipe part 510 and a second cooling pipe part 520 .
  • FIG. 7 shows that the first cooling pipe part 510 is formed on the outermost side of the cooling pipe member 500 so that they are symmetrical with respect to the center of the cooling pipe member 500, different cooling pipe parts 510 and 520 may be formed on both outermost sides of the cooling pipe member 500.
  • first cooling pipe part 510 and the second cooling pipe part 520 may be connected to each other. Accordingly, a cooling passage may be formed along the first cooling pipe part 510 and the second cooling pipe part 520 .
  • first cooling pipe part 510 and the second cooling pipe part 520 may be formed parallel to the longitudinal direction of the battery cell 110 . Accordingly, the cooling passage formed along the first cooling pipe part 510 and the second cooling pipe part 520 may also be formed parallel to the longitudinal direction of the battery cell 110 .
  • a refrigerant or cooling water may flow through the cooling passage formed parallel to the longitudinal direction of the battery cell 110 . That is, the top surface of the battery cell stack 120 may be cooled by the refrigerant or cooling water flowing along the first cooling pipe part 510 and the second cooling pipe part 520 .
  • the first cooling pipe unit 510 and the second cooling pipe unit 520 may form one cooling pipe unit.
  • the cooling pipe unit may include a state in which the first cooling pipe unit 510 and the second cooling pipe unit 520 are connected to each other. Therefore, the cooling pipe unit may include the cooling passage formed along the first cooling pipe part 510 and the second cooling pipe part 520 .
  • the cooling pipe member 500 may include a plurality of first cooling pipe units 510 and a plurality of second cooling pipe units 520 by including a plurality of cooling pipe units. That is, a plurality of cooling pipe units may be formed in the cooling pipe member 500 to include a plurality of cooling passages. In some cases, the cooling pipe units may be repeated so that the cooling passages are connected to each other to form one cooling passage.
  • the cooling pipe member 500 may further include a refrigerant inlet 530 and a refrigerant outlet 540 .
  • the refrigerant inlet 530 and the refrigerant outlet 540 may be formed adjacent to the end plate 150, in particular, may be formed adjacent to the rear end plate 152, and more specifically, may be formed adjacent to the top of the rear end plate 152.
  • the refrigerant inlet 530 and the refrigerant outlet 540 may exist inside the battery module 100, but may be exposed to the outside as shown in FIG. 4.
  • the first cooling pipe unit 510 may be connected to the refrigerant inlet 530 and the second cooling pipe unit 520 may be connected to the refrigerant outlet 540 .
  • the first cooling pipe part 510 is connected to the refrigerant outlet 540 and the second cooling pipe part 520 is connected to the refrigerant inlet 530 and so on. Therefore, in the battery module 100 according to the present embodiment, refrigerant is introduced through the refrigerant inlet 530, the battery cell 110 is cooled through the first cooling pipe part 510 and the second cooling pipe part 520, and then the refrigerant can be discharged to the outside of the battery module 100 through the refrigerant outlet 540.
  • a flow of the cooling passage flowing through the inflow and outflow of the refrigerant may be formed.
  • the cooling pipe member 500 may contact the second thermally conductive resin layer 320 . Accordingly, an additional heat transfer path through contact between the cooling pipe member 500 and the second thermally conductive resin layer 320 may be formed.
  • heat transferred from the battery cell 110 to the refrigerant flowing along the cooling pipe member 500 may be transferred to the module frame 200 by being additionally transferred to the second thermally conductive resin layer 320 . Accordingly, safety of the battery module 100 may be ensured by forming a plurality of cooling paths of the battery cells 110 .
  • the cooling pipe member 500 may be formed adjacent to the sealing portion 114sc.
  • the sealing part 114sc may be positioned between the first cooling pipe part 510 and the second cooling pipe part 520 of the cooling pipe member 500 . Therefore, there is no difficulty in space utilization due to the sealing part 114sc, and stability of the battery module can be improved through the cooling effect of the battery cell 110 through the cooling pipe member 500.
  • the sealing part 114sc since the sealing part 114sc is positioned between the first cooling pipe part 510 and the second cooling pipe part 520, the sealing part 114sc can be stably fixed.
  • FIG. 11 is a perspective view of a battery module according to another embodiment of the present invention viewed from the rear.
  • FIG. 12 is a view showing a cross section cut along the cutting line C-C′ of FIG. 11 .
  • the battery module 100 further includes a cooling pipe member 600 formed between the lower portion of the battery cell stack 120 and the module frame 200 .
  • a cooling pipe member 600 formed between the lower portion of the battery cell stack 120 and the module frame 200 .
  • the first cooling pipe member 500 and the second cooling pipe member 600 in order to classify the cooling pipe members 500 and 600 according to the formation position.
  • the battery module 100 includes the first cooling pipe member 500 formed between the upper portion of the battery cell stack 120 and the module frame 200 as well as the lower portion of the battery cell stack 120 and the module frame. By including the second cooling pipe member 600 formed between the 200, an additional cooling path can be formed.
  • the second cooling pipe member 600 may contact the first thermally conductive resin layer 310 .
  • the second cooling pipe member 600 may include a first cooling pipe part 610 and a second cooling pipe part 620, and may include a refrigerant inlet 630 and a refrigerant outlet 640.
  • the refrigerant inlet 630 and the refrigerant outlet 640 may be formed adjacent to the rear end plate 152 , and more specifically, may be formed adjacent to the bottom of the rear end plate 152 .
  • the battery module 100 includes a first cooling pipe member 500 and a second cooling pipe member 600, thereby cooling the upper and lower portions of the battery cell stack 120. It is possible to form a plurality of cooling paths. Therefore, it is possible to secure the safety of the battery module 100 as well as to solve the heat generation problem of the battery cell 110 .
  • a sealing unit included in a battery module according to another embodiment of the present invention will be additionally described. Except for the shape of the sealing part, all of the contents described above may be included, so only contents different from those described above will be described.
  • FIG. 14 to 16 are views showing a sealing unit according to another embodiment of the present invention.
  • the length of the sealing portion 114sc extending toward the top of the module frame 200 is equal to or longer than the length extending along the top of the battery cell 110 (ie, the horizontal length of the sealing portion 114sc), while the sealing portion 114sc is the sealing portion 114sc of FIGS. 9 and 10 ) and may have various shapes.
  • the sealing portion 114sc may have a shape extending from the top of the battery cell 110 toward the top of the module frame 200 without being bent. In this case, the area occupied by the sealing portion 114sc on the top of the battery cell 110 may be minimized. In addition, the entire outer surface of the sealing portion 114sc may be covered by the second thermally conductive resin layer 320 . Accordingly, a contact area between the upper portion of the battery cell 110 and the second thermally conductive resin layer 320 can be maximized to maximize a heat transfer area between the battery cell 110 and the second thermally conductive resin layer 320, and cooling performance of the battery cell 110 by the second thermally conductive resin layer 320 can be further improved. In addition, the sealing portion 114sc may be stably formed by being additionally fixed by the cooling pipe member 500 .
  • the sealing portion 114sc may have a shape that is folded once in a counterclockwise direction. In this case, by increasing the area of the sealing portion 114sc compared to FIG. 5 , it is possible to improve the sealing performance of the battery cell 110 and maximize space utilization within the battery module 100 .
  • the sealing portion 114sc may have a shape that is folded multiple times. More specifically, the length of the sealing portion 114sc extending toward the top of the module frame 200 and the length extending along the top of the battery cell 110 may be the same or similar to each other. In this case, the length of the sealing portion 114sc extending toward the upper portion of the module frame 200 is smaller than that of FIGS. 10, 14, and 15, so that the area of the second thermally conductive resin layer 320 positioned above the sealing portion 114sc can be maximized.
  • the battery cell 110 of the present embodiment may include various shapes of the sealing portion 114sc, and thus, in the battery cell 110 of the present embodiment, the upper part of the sealing portion 114sc and the second The degree of heat transfer between the thermally conductive resin layer 320 may be increased, and the cooling performance of the second thermally conductive resin layer 320 with respect to the battery cell 110 may be improved.
  • a battery pack according to this embodiment includes the battery module described above.
  • the battery pack of the present invention may have a structure in which one or more battery modules according to the present embodiment are gathered and packed by adding a battery management system (BMS) for managing temperature or voltage of the battery and a cooling device.
  • BMS battery management system
  • the battery pack may be applied to various devices. These devices can be applied to means of transportation such as electric bicycles, electric vehicles, hybrid vehicles, etc., but the present invention is not limited thereto and can be applied to various devices capable of using a battery module, which also falls within the scope of the present invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Un module de batterie selon un mode de réalisation de la présente invention comprend : un empilement d'éléments de batterie comprenant une pluralité d'éléments de batterie ; un cadre de module dans lequel l'empilement d'éléments de batterie est logé ; et un élément de tuyau de refroidissement qui est formé entre la partie supérieure de l'empilement d'éléments de batterie et le cadre de module, l'élément de tuyau de refroidissement comprenant une première partie de tuyau de refroidissement et une seconde partie de tuyau de refroidissement.
PCT/KR2022/019764 2022-01-24 2022-12-07 Module de batterie et bloc-batterie le comprenant WO2023140496A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22922353.2A EP4366038A1 (fr) 2022-01-24 2022-12-07 Module de batterie et bloc-batterie le comprenant
CN202280058464.0A CN117882232A (zh) 2022-01-24 2022-12-07 电池模块和包括该电池模块的电池组

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220009946A KR20230113998A (ko) 2022-01-24 2022-01-24 전지 모듈 및 이를 포함하는 전지 팩
KR10-2022-0009946 2022-01-24

Publications (1)

Publication Number Publication Date
WO2023140496A1 true WO2023140496A1 (fr) 2023-07-27

Family

ID=87348892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2022/019764 WO2023140496A1 (fr) 2022-01-24 2022-12-07 Module de batterie et bloc-batterie le comprenant

Country Status (4)

Country Link
EP (1) EP4366038A1 (fr)
KR (1) KR20230113998A (fr)
CN (1) CN117882232A (fr)
WO (1) WO2023140496A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160133776A (ko) * 2015-05-13 2016-11-23 주식회사 엘지화학 배터리 모듈
KR20200003600A (ko) * 2018-07-02 2020-01-10 에스케이이노베이션 주식회사 배터리 모듈
KR20200125184A (ko) * 2019-04-26 2020-11-04 에스케이이노베이션 주식회사 배터리 모듈
KR20200140476A (ko) * 2019-06-07 2020-12-16 에스케이이노베이션 주식회사 배터리 모듈
KR102329216B1 (ko) * 2014-08-25 2021-11-22 현대자동차주식회사 차량용 배터리 냉각장치
KR20220009946A (ko) 2019-05-21 2022-01-25 퀄컴 인코포레이티드 적응적 루프 필터들에 대한 클리핑 값 계산의 단순화

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102329216B1 (ko) * 2014-08-25 2021-11-22 현대자동차주식회사 차량용 배터리 냉각장치
KR20160133776A (ko) * 2015-05-13 2016-11-23 주식회사 엘지화학 배터리 모듈
KR20200003600A (ko) * 2018-07-02 2020-01-10 에스케이이노베이션 주식회사 배터리 모듈
KR20200125184A (ko) * 2019-04-26 2020-11-04 에스케이이노베이션 주식회사 배터리 모듈
KR20220009946A (ko) 2019-05-21 2022-01-25 퀄컴 인코포레이티드 적응적 루프 필터들에 대한 클리핑 값 계산의 단순화
KR20200140476A (ko) * 2019-06-07 2020-12-16 에스케이이노베이션 주식회사 배터리 모듈

Also Published As

Publication number Publication date
CN117882232A (zh) 2024-04-12
KR20230113998A (ko) 2023-08-01
EP4366038A1 (fr) 2024-05-08

Similar Documents

Publication Publication Date Title
WO2020262832A1 (fr) Bloc-batterie et dispositif le comprenant
WO2021210771A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2021206514A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2021206383A1 (fr) Bloc-batterie et dispositif le comprenant
WO2021221307A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2022014966A1 (fr) Bloc-batterie et dispositif le comprenant
WO2022080754A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2021246636A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2021221340A1 (fr) Bloc-batterie et dispositif le comprenant
WO2021221295A1 (fr) Bloc-batterie et dispositif le comprenant
WO2022225168A1 (fr) Batterie et dispositif la comprenant
WO2022270780A1 (fr) Bloc-batterie et dispositif le comprenant
WO2022203232A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2022059936A1 (fr) Module de batterie ayant une performance de refroidissement améliorée et bloc-batterie le comprenant
WO2021221310A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2023140496A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2023140497A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2023096096A1 (fr) Module de batterie et batterie le comprenant
WO2023033504A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2023038452A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2021215654A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2023027435A1 (fr) Bloc-batterie et dispositif le comprenant
WO2022225191A1 (fr) Module de batterie et batterie le comprenant
WO2021221296A1 (fr) Module de batterie et bloc-batterie le comprenant
WO2022182036A1 (fr) Module de batterie et bloc-batterie le comprenant

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22922353

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2022922353

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022922353

Country of ref document: EP

Effective date: 20240129

WWE Wipo information: entry into national phase

Ref document number: 202280058464.0

Country of ref document: CN